Nanoscale docosahexaenoic acid emulsion and preparation method thereof

The present invention discloses a nanoscale docosahexaenoic acid emulsion and a preparation method thereof. The nanoscale docosahexaenoic acid emulsion comprises the following materials: 150 g to 500 g of docosahexaenoic acid as a core material, 0.1 g to 20 g of an antioxidant, 150 g to 200 g of a wall material, 75 g to 350 g of a stabilizer, 3 g to 100 g of a dispersing agent, 50 g to 150 g of an emulsifier, and up to 1000 g with water. The emulsion prepared in the present invention is an O/W type, and is principally prepared by mixing the docosahexaenoic acid oil, the emulsifier, the stabilizer, the wall material, an ionic dispersing agent and the water at a certain ratio, carrying out emulsifying, embedding, shearing and high pressure homogenizing, and finally getting an emulsion in which more than 80% of emulsified oil droplets have particle sizes of less than 100 nm, and have a normal distribution and a stable state. The present invention provides a docosahexaenoic acid emulsion formulation which can be